Home / 1,979.45-2,963.70-1,491.02

Finding the Fourth Proportional to 1,979.45, 2,963.70 and 1,491.02

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Solution

The fourth proportional to 1,979.45, 2,963.70 and 1,491.02 is: 2,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.45 : 2,963.70 = 1,491.02 : x
  2. Step 2: Convert to fraction form
    1,979.45/2,963.70 = 1,491.02/x
  3. Step 3: Cross multiply
    1,979.45x = 2,963.70 × 1,491.02
  4. Step 4: Simplify right side
    1,979.45x = 4,418,921.16
  5. Step 5: Solve for x
    x = 4,418,921.16/1,979.45
  6. Step 6: Final answer
    x = 2,232.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.